SAP installation stopped R3load -testconnect

Hello guys,

i am in te middle of installation of NW7.0 with Oracle 10.2.

I am stopped at around step 19: and i have the error R3load -testconnect failed.

When i made investigation i noticed that:

R3load

R3load: error while loading shared libraries: libstdc++.so.5: wrong ELF class: ELFCLASS32

The oracle and NW are on64 bit

Uname -a:

Linux test 2.6.18-274.el5 #1 SMP Fri Jul 8 17:36:59 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux

OS: RHEL 5

Please can you help me regarding this issue.. i cannot continue the installation without this.

Thanks